kitio.aiCartesia Sonic vs Luvvoice
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic has the lower starting price: about $5 a month, against $8 for Luvvoice.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Real-time speech under 90ms
- 44 languages
- Instant voice cloning
- Emotion and laughter control
- Voice localisation
- 200+ voices in 70+ languages
- File and ebook to speech
- Voice cloning
- Rate and pitch control
- MP3 download
- API and MCP access
| Feature | Cartesia Sonic | Luvvoice |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | Free online text to speech with 200+ voices and MP3 downloads |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Freemium |
| Starting price | $5/mo | $8/mo |
| Free plan | Yes | Yes |
| Made by | Cartesia | Luvvoice |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Cartesia Sonic has the lower starting price: about $5 a month, against $8 for Luvvoice.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
Free
Free
- 20K credits per month
- Text to speech and speech to text
- $1 of prepaid voice agent usage
Pro
$5/mo
- 100K credits per month
- Commercial use license
- Instant voice cloning
Startup
$49/mo
- 1.25M credits per month
- Professional voice cloning
- $49 of prepaid agent usage
Scale
$299/mo
- 8M credits per month
- Priority support
- High concurrency limits
Enterprise
Contact sales
- Custom credits and volume pricing
- SSO and DPAs
- Shared Slack channel
4 plans
Free
Free
- 10,000 characters per month
- 200+ voices
- MP3 download
- Files stored 30 days
Lite
$8/mo
- 700K standard credits a month
- 10K custom credits a month
- No ads or captcha
Plus
$13/mo
- 1.5M standard credits a month
- 30K custom credits a month
- API access
Enterprise
$45/mo
- 6M standard credits a month
- 200K custom credits a month
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Cartesia Sonic
- Very fast time to first audio
- Wide language coverage in one model
- Cloning from ten seconds of audio
- Aimed at developers more than casual users
- Credit system takes a while to understand
- Commercial license needs a paid plan
Luvvoice
- Generous free character allowance
- Wide language coverage
- Cheap paid tiers
- Free tier shows ads and captchas
- Custom voices use a separate credit pool
- Files are deleted after 30 days
Which one should you choose?
Choose Cartesia Sonic if you want:
- Very fast time to first audio
- Wide language coverage in one model
- Cloning from ten seconds of audio
Watch out: aimed at developers more than casual users.
Choose Luvvoice if you want:
- Generous free character allowance
- Wide language coverage
- Cheap paid tiers
Watch out: free tier shows ads and captchas.
Cartesia Sonic vs Luvvoice FAQ
What is the difference between Cartesia Sonic and Luvvoice?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. Luvvoice: Free online text to speech with 200+ voices and MP3 downloads. Both are audio & voice tools.
Is Cartesia Sonic or Luvvoice cheaper?
Cartesia Sonic has the lower starting price: about $5 a month, against $8 for Luvvoice.
Do Cartesia Sonic and Luvvoice have free plans?
Cartesia Sonic: Yes. Luvvoice: Yes.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes Luvvoice?
Luvvoice is made by Luvvoice.
Which should I choose, Cartesia Sonic or Luvvoice?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose Luvvoice if you value generous free character allowance and wide language coverage.